Provide the Right Nesting Boxes Bluebirds love to nest in secure, well-placed boxes. Install a bluebird-specific nesting box that has an entrance hole of about 1.5 inches in diameter and place it in a quiet, open area with little disturbance.
Offer a Fresh Water Source Bluebirds need access to fresh water for drinking and bathing. Install a birdbath or a shallow water dish in your garden, preferably with a gentle slope so they can safely drink and bathe. Be sure to change the water regularly.
Create a Natural Habitat with Native Plants Plant native shrubs, trees, and flowering plants that attract insects, which serve as a food source for bluebirds. Things like serviceberry, dogwood, and holly bushes will encourage these beautiful birds to visit.
Provide Mealworms Mealworms are a favorite treat for bluebirds. Place them in a shallow dish or feeder, and they’ll soon catch the attention of bluebirds.
Minimize Pesticide Use Bluebirds rely on insects for their diet, so limit the use of pesticides in your garden. The fewer chemicals you use, the more insects will be available for bluebirds to hunt.
Offer Suet or Seed Mixes While bluebirds primarily feed on insects, they will also appreciate suet and seed mixes, especially in the colder months when food is scarce.
Keep Your Garden Open and Spacious Bluebirds prefer open areas to hunt for insects. Trim back overgrown plants and keep your garden relatively open with a few scattered trees or shrubs to allow bluebirds to easily spot potential food sources.